| -rw-r--r-- | lib/util.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/util.cc b/lib/util.cc index 54d6535..b7bc437 100644 --- a/lib/util.cc +++ b/lib/util.cc @@ -161,6 +161,25 @@ namespace opkele { return rv; } + string attr_escape(const string& str) { + static const char *unsafechars = "<>&\n\"'"; + string rv; + string::size_type p=0; + while(true) { + string::size_type us = str.find_first_of(unsafechars,p); + if(us==string::npos) { + if(p!=str.length()) + rv.append(str,p,str.length()-p); + return rv; + } + rv.append(str,p,us-p); + rv += "&#"; + rv += long_to_string((long)str[us]); + rv += ';'; + p = us+1; + } + } + string long_to_string(long l) { char rv[32]; int r=snprintf(rv,sizeof(rv),"%ld",l); |